258124720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{460937}}^1$

素因数の和:460957

約数の個数: 40

約数和(自身を含む): 685875744

約数和(自身を除く): 427751024

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 460937, 921874, 1843748, 2304685, 3226559, 3687496, 4609370, 6453118, 7374992, 9218740, 12906236, 16132795, 18437480, 25812472, 32265590, 36874960, 51624944, 64531180, 129062360, 258124720]

約数ペア:

[(1, 258124720), (2, 129062360), (4, 64531180), (5, 51624944), (7, 36874960), (8, 32265590), (10, 25812472), (14, 18437480), (16, 16132795), (20, 12906236), (28, 9218740), (35, 7374992), (40, 6453118), (56, 4609370), (70, 3687496), (80, 3226559), (112, 2304685), (140, 1843748), (280, 921874), (560, 460937)]